Satelliidiboksid

Satelliidiboksid, also known as satellite receivers or set-top boxes, are electronic devices that decode satellite television signals and convert them into a format that can be displayed on a television. These devices are essential for accessing satellite broadcasting services. A satellite dish on the exterior of a building receives the television signal from a satellite orbiting Earth. This signal is then transmitted via coaxial cable to the satelliidiboks.

Inside the satelliidiboks, a tuner selects the desired channel from the incoming signal. A demodulator then processes this signal, removing any interference. The core function of the box is performed by a decoder, which decrypts the signal if it is encrypted (as is common for pay-TV services) and converts the digital data into audio and video streams. These streams are then sent to the television through an HDMI, SCART, or other suitable connection.

Modern satelliidiboksid often offer advanced features beyond basic channel reception. Many include Electronic Program Guides (EPGs) that display TV schedules, allowing users to browse available content. Some also support High Definition (HD) and Ultra High Definition (UHD or 4K) broadcasting, providing superior picture quality. Additionally, some boxes integrate smart TV capabilities, offering access to streaming services, internet browsing, and other online applications. The specific capabilities of a satelliidiboks depend on the model and the service provider.